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I'm just about to make a cattle grid for the driveway, I've got a handle on the design and important features like hedge hog ramps but I'm wondering what pipe sizes to use.
around 90mm diameter seems to be the norm, but wall thickness I'm not sure about.
Local steel stock supplier has these options
I'm thinking either the steam tube or the 5mm wall CHS but could be completely wrong.
I'll be putting plenty of support underneath, its just over 3m wide so probably every 500mm max. Needs to take the weight of the usual builders merchants wagon with hiab and the sludge gobbler for the septic tank.
I do know a man who can do the calcs, but as this is pretty standard stuff I was hoping that there is a well known tube size that most use.
Any ideas, thanks in advance
Cheer
Andy
around 90mm diameter seems to be the norm, but wall thickness I'm not sure about.
Local steel stock supplier has these options
- CHS 88.9 x 3 or 5mm
- ERW tube, imperial , thickest is 10G so just over 3mm wall only got 3" or 4" diameter
- Metric medium P/E steam tube 80mm, it doesn't mention wall thickness but I believe that this refers to blue band steam tube and 80mm is bore, the external diameter is around 88 to 89mm and wall size is just over 4mm.
I'm thinking either the steam tube or the 5mm wall CHS but could be completely wrong.
I'll be putting plenty of support underneath, its just over 3m wide so probably every 500mm max. Needs to take the weight of the usual builders merchants wagon with hiab and the sludge gobbler for the septic tank.
I do know a man who can do the calcs, but as this is pretty standard stuff I was hoping that there is a well known tube size that most use.
Any ideas, thanks in advance
Cheer
Andy